September weather forecast
Tarim, Yemen

The heat recedes slightly in Tarim, bringing the September temperature down to a manageable 32.6°C (90.7°F). This month witnesses a considerable decline in rainfall when compared to its predecessor, August. Consequently, september is drier with lower wind speeds and pressure culminating in an overall pleasant climate. The elongated sunshine hours and the decreased humidity ensure a comfortable atmosphere. A gradual decrease in daylight hours starts indicating the arrival of cooler months in Tarim.

Temperature

The dawn of September sees an average high-temperature of a still hot 32.6°C (90.7°F), subtly contrasting with August's 34.6°C (94.3°F). In the month of September, Tarim records a consistent average low-temperature of 26.3°C (79.3°F).

Heat index

The heat index value during September is evaluated at a fiery hot 39°C (102.2°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In September, the average relative humidity is 62%.

Rainfall

In Tarim, in September, it is raining for 4.2 days, with typically 4mm (0.16") of accumulated precipitation. Throughout the year, there are 35.5 rainfall days, and 65mm (2.56") of precipitation is accumulated.

Daylight

In Tarim, the average length of the day in September is 12h and 13min.
On the first day of September, sunrise is at 05:30 and sunset at 17:56. On the last day of the month, sunrise is at 05:33 and sunset at 17:33 +03.

Sunshine

In September, the average sunshine is 9.8h.

UV index

The average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, a daily UV index of 7 turns into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.